If your PC is slowing down in everyday tasks then upgrading the processor (CPU) could give it a new lease of life. Upgrading from an older or lower spec CPU could give your PC the boost it needs to be able to breeze through everyday tasks instead of stuttering and stalling. We stock a wide range of refurbished Intel Core CPUs from 1st-generation i5s right up to 9th and 10th generation i7s and even i9s. If you're upgrading your CPU make sure to check your motherboard compatibility first, as different generations of processor fit different motherboard sockets.